Spinal nerves Flashcards Preview

3 Neuroanatomy > Spinal nerves > Flashcards

Flashcards in Spinal nerves Deck (26)
1

Dorsal roots of contain sensory/motor fibres

Dorsal roots of contain sensory fibres

2

Ventral roots contain ______ fibres

Ventral roots contain motor fibres

3

What fibres are found in the spinal nerves?

Motor and sensory

4

What fibres run in the posterior rami if spinal nerves?

sensory and motor

5

What fibres run in the anterior rami of spinal nerves?

sensory and motor

6

What nerve supplies the badge patch area of the upper arm?

Axillary nerve( C5,6)

7

The lateral forearm is innervated by the _____ nerve anteriorly and ______ nerve posteriorly

The lateral forearm is innervated by the musculocutaneous nerve (cutaneous branch) and radial nerve posteriorly.

8

The medial arm and forearm are supplied by the ______ anterior rami - these refer pain from the heart.

The medial arm and forearm are supplied by the T1 and T2 anterior rami - these refer pain from the heart.

9

Anterior thigh is supplied by what named nerve?

Femoral nerve

10

Lateral thigh is supplied by the ________

lateral cutaneous nerve of the thigh

11

______ nerve innervates the medial aspect of the thigh

Obturator nerve innervates the medial aspect of the thigh

12

_____ nerve supplies the lateral aspect of the leg

Saphenous nerve supplies the lateral aspect of the leg

13

Dorsum of the foot is supplied by the _____ _____ nerve

Dorsum of the foot is supplied by the superficial fibular nerve

14

Plantar surface of the foot is supplied by the _____ nerve

Plantar surface of the foot is supplied by the tibial nerve

15

What is the named nerve supplying the posterior thigh?

Posterior cutaneous nerve of thigh

16

Where do primary motor neurons cross over?

In the medulla

17

The deltoid muscle, responsible for shoulder flexion, is supplied by the __ spinal nerve

C5

18

Biceps brachii flexes the elbow. It is innervated by __ myotome

C5

19

__ is the elbow extension/triceps myotome

C7

20

Finger flexion (by flexor digitorum superficialis) is supplied by the __ myotome

C8

21

dorsal interossei abduct the fingers. The myotome is __

T1

22

What myotome and muscle is tested by knee extension?

L3, quadriceps femoris

23

What myotome does ankle dorsiflexion test?

L4, tibialis anterior

24

Extension of the great toe tests what myotome?

L5, extensor hallucis longus

25

What myotome is tested by ankle plantarflexion?

S1, gastrocnemius

26

What myotome is tested by knee flexion?

S2, biceps femoris